Pool



FIG. 1 is a perspective view of a pool;

FIG. 2 is a side view thereof, with all sides of the pool being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is an enlarged view of portion 5 in FIG. 1;

FIG. 6 is an enlarged view of portion 6 in FIG. 1;

FIG. 7 is an enlarged view of portion 7 in FIG. 1;

FIG. 8 is an enlarged view of portion 8 in FIG. 1; and,

FIG. 9 is an enlarged view of portion 9 in FIG. 1.

The dashed broken lines are directed to environment and show unclaimed subject matter and form no part of the claimed design. The dash-dot broken lines represent boundary lines defining unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a pool, as shown and described. 